Luisa has been a bit rude in the program, but only towards the other females.
In ep 1 it was Leah - 'you're just a doctor'
In ep 2 it was Rebecca (when they were in the losers cafe and in the boardroom, Luisa was trying to defend Tim and belittle Rebecca, saying that it wasn't Tim's fault but hers. To be fair to her on that one though, Uzma, Sophie and Natalie were having a go at Rebecca too)
In ep 3 it was Uzma (Uzma was appointed sub-team leader and Luisa kept talking over her whilst she was speaking to the design guy)
Week 6 it was Francesca and Rebecca.
I didn't like Luisa at first (because of how abrasive she was) but had to admit that she was a good candidate and did a decent job as PM in ep 4. I thought she'd turned it around after a quieter ep in Dubai and was willing to give her the benefit of the doubt but she blew that with how she behaved in the last ep. Not the part where she said she works better with men than with women because that's the same for me, but it didn't take long for her to make what could be construed as a bitchy comment about someone (at the beginning when she was saying how Rebecca was 'desperate' to be PM, I don't know, something about the way she said it made it come across as bitchy) and then when she was in the car with Jason making fun of Francesca.
She'll make it to the end, I don't doubt that, and she does seem to have a good head for business, but after seeing how she has behaved, I wouldn't want to work with her and I doubt LS would either.
(and before anyone tries to accuse me of being a 'jealous hater' or anything, there's quite a few of them that I wouldn't want to work with)